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Adrenocorticotropic Hormone (ACTH), Plasma
Test Code36615
CPT Codes
82024<br /> Limited Access Code
Preferred Specimen
1 mL frozen plasma collected in EDTA (lavender-top) tube
Patient Preparation
For 12 hours before this test do not take multivitamins or dietary supplements containing biotin (vitamin B7), which is commonly found in hair, skin, and nail supplements and multivitamins.
Minimum Volume
0.5 mL
Instructions
1.) Morning (6 a.m.-10:30 a.m.) specimen is desirable.
2.) Collect with a pre-chilled EDTA tube and transport to the laboratory on ice.
3.) Spin down in a refrigerated centrifuge within 2 hours and immediately separate plasma from cells.
4.) Immediately freeze plasma.
Additional Information: Separate specimens should be submitted when multiple tests are ordered.
2.) Collect with a pre-chilled EDTA tube and transport to the laboratory on ice.
3.) Spin down in a refrigerated centrifuge within 2 hours and immediately separate plasma from cells.
4.) Immediately freeze plasma.
Additional Information: Separate specimens should be submitted when multiple tests are ordered.
Transport Temperature
Frozen
Specimen Stability
Room temperature: 2 hours
Refrigerated: 3 hours
Frozen: 28 days
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Gross hemolysis
Methodology
Electrochemiluminescent Immunoassay
Setup Schedule
Set up: Mon-Sat; Report available: 1-3 days
Reference Range
7.2-63 pg/mL (a.m. collection)
Clinical Significance
Determining the cause of hypercortisolism and hypocortisolism.
